The ambient soundscape of inland waters in Seattle, Washington: bridge traffic as a source of urban underwater noise pollution?

Senior thesis written for Oceanography 445

The effect of shore armoring on beach slope in mixed sand-and-gravel beaches

Senior thesis written for Oceanography 445

Macro and micro plastics in an urbanized and non-urbanized fjord estuary in the Northeast Pacific Ocean

Senior thesis written for Oceanography 445

Spatial distribution of plastic pollutants in a transit from Puget Sound to outside Nootka Sound Canada

Senior thesis written for Oceanography 445

The Decline of Wild Pacific Salmon

As threatened and endangered species, wild Pacific salmon are in peril. This paper discusses the differences of the five species of wild Pacific salmon. As salmon go through several stages of their lifecycles, they face a myriad of threats to their existence. Threats from humans in the form of hydropower dams, habitat destruction, harvesting issues, and hatcheries are explained. A draft recovery plan for salmon in the Puget Sound area of Washington State is used as a case study. Strengths and weaknesses of this plan are discussed. The paper then discusses the need for growth management laws supporting salmon habitat and a change in individual behaviors if wild Pacific salmon sustainability is to become a reality.

Mapping Whidbey Island and Possession Sound landslide susceptibility using an additive linear model

Senior thesis written for Oceanography 445

Effects of fluvial and marine processes on nearshore suspended sediment concentrations off the Elwha River

Senior thesis written for Oceanography 444

Site level cost benefit analysis of renewable energy in the near-shore environment

Senior thesis written for Oceanography 445

Determining the spatial scale of wave variance for the siting of wave energy converters in near shore coastal environments

Senior thesis for Oceanography 445

Exploring the spatial variation of tides for seafloor mapping data corrections

Senior thesis written for Oceanography 445

Linking surficial geomorphology with vertical structure in high and low energy marine environments

Senior thesis written for Oceanography 445

Strong, low frequency (decadal) environmental fluctuations during the 20th century in the North Pacific Ocean, on the Washington coast, and in Puget Sound

At decadal period (10-20 years), dynamic linkage was evident between atmospheric low pressure systems over the North Pacific Ocean and circulation in a Pacific Northwest fjord (Puget Sound). As the Aleutian low pressure center shifts, storms arriving from the North Pacific Ocean deposit varying amounts of precipitation in the mountains draining into the estuarine system; in turn, the fluctuating addition of fresh water changes the density distribution near the fjord basin entrance sill, thereby constraining the fjord's vertical velocity structure. This linkage was examined using time series of 21 environmental parameters from 1899 to 1987. Covariation in the time series was evident because of the strong decadal cycles compared with long-term averages, interannual variability, and seasonal cycles.

Report on financial feasibility of proposed Puget Sound Bridge: capital costs, potential traffic, future revenues, and methods of financing. Prepared for the Washington Toll Bridge Authority and the Washington State Legislature Joint Fact-Finding Committee on Highways, Streets and Bridges.

Mode of access: Internet.

Size-selective mortality and environmental factors affecting early marine growth during early marine life stages of sub-yearling Chinook salmon in Puget Sound, Washington

Thesis (Master's)--University of Washington, 2016-08

Environmental Aspects of Underground Construction and Exploration of Underground Structure – State of the Art

An underground work (such as a tunnel or a cavern) has many, well known, environmental qualities such as: no physical barriers crossing the land, less maintenance costs than an analogous surface structure, less expenses for heating and conditioning; a localized emission of noise, gas, dust during operation and, finally, a better protection against seismic actions.
It cannot be forgotten, anyway, that some negative environmental features are present such as, for example, : perturbation, pollution and drainage of the groundwater; settlements; disposal of waste rock.
In the paper the above mentioned concepts are discussed and analysed to give a global overview of all this aspects.